Fold and tumble mechanism for a vehicle seat

Patent metadata

Field	Value
Publication number	US-10604037-B2
Application number	US-201816042035-A
Country	US
Kind code	B2
Filing date	Jul 23, 2018
Priority date	Jul 18, 2016
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A vehicle seat includes a seat bottom, a seat back and a floor latch associated with the seat bottom. The seat further includes a recliner arrangement including a recliner bracket connected to the seat bottom, a back side bracket connected to the seat back, and a recliner connected to the recliner bracket and the back side bracket and configured to allow the seat back to pivot with respect to the seat bottom. In addition, the seat includes a fold and tumble mechanism having an actuating member pivotally connected directly to the back side bracket, and a rocker member pivotally connected to the recliner bracket and connected to a latch cable associated with the floor latch. The actuating member is engageable with the rocker member when the seat back is pivoted forwardly to cause the rocker member to pivot and pull on the latch cable, which releases the floor latch so that the seat bottom may pivot upwardly.

First claim

What is claimed is:

1. A vehicle seat comprising:
a seat bottom;
a seat back that is pivotable with respect to the seat bottom;
a recliner arrangement including a recliner bracket connected to the seat bottom, a back side bracket connected to the seat back, and a recliner connected to the recliner bracket and the back side bracket and configured to allow the seat back to pivot with respect to the seat bottom;
a floor latch associated with the seat bottom; and
a fold and tumble mechanism including an actuating member pivotally connected directly to the back side bracket, and a rocker member pivotally connected to the recliner bracket and connected to a latch cable associated with the floor latch, wherein the actuating member is engageable with the rocker member when the seat back is pivoted forwardly to cause the rocker member to pivot and pull on the latch cable, which releases the floor latch so that the seat bottom may pivot upwardly.

2. The vehicle seat of claim 1 wherein the back side bracket is positioned outwardly of the recliner bracket, and the recliner is disposed between the recliner bracket and the back side bracket.

3. The vehicle seat of claim 1 wherein the recliner is disposed on a first side of the vehicle seat, and wherein the recliner arrangement further includes an additional recliner disposed on a second side of the vehicle seat, and a recliner lever connected to the additional recliner for actuating both recliners.

4. The vehicle seat of claim 3 wherein the recliner lever includes a lower handle, which may be grasped by an occupant of the vehicle seat for reclining the seat back or by someone desiring to execute a fold and tumble operation in order to gain access behind the vehicle seat, and an upper handle that may be grasped by a vehicle occupant located behind the vehicle seat in order to perform a fold and tumble operation.

5. The vehicle seat of claim 1 wherein the fold and tumble mechanism further includes a stop on the back side bracket for inhibiting pivotal movement of the actuating member, and a coil spring having a first end connected to the back side bracket and a second end connected to the actuating member, wherein the coil spring is configured to urge the actuating member toward the stop.

6. The vehicle seat of claim 5 wherein the stop includes a pin connected to the back side bracket and a damping cover disposed over the pin for reducing noise when the actuating member contacts the stop.

7. The vehicle seat of claim 1 wherein the fold and tumble mechanism further includes a stop on the recliner bracket for inhibiting pivotal movement of the rocker member, and a coil spring having a first end connected to the recliner bracket and a second end connected to the rocker member, wherein the coil spring is configured to urge the rocker member toward the stop.

8. The vehicle seat of claim 7 wherein the stop includes a pin connected to the recliner bracket and a damping cover disposed over the pin for reducing noise when the rocker member contacts the stop.

9. The vehicle seat of claim 1 wherein the actuating member has an elongated, generally linear shape.

10. The vehicle seat of claim 1 wherein the rocker member has a T-shaped configuration.

11. The vehicle seat of claim 1 wherein the actuating member is pivotally connected to the back side bracket at a location below a rotational axis of the recliner when the seatback is in an upright use position.

12. The vehicle seat of claim 11 wherein the fold and tumble mechanism further includes a stop on the back side bracket for inhibiting pivotal movement of the actuating member, and a spring having a first end connected to the back side bracket and a second end connected to the actuating member, wherein the spring is configured to urge the actuating member toward the stop.

13. The vehicle seat of claim 12 wherein the stop is located below the rotational axis of the recliner when the seat back is in an upright use position.

14. The vehicle seat of claim 12 wherein the first and second ends of the spring are located below the rotational axis of the recliner when the seat back is in an upright use position.

15. The vehicle seat of claim 12 wherein the stop and the spring are located below the rotational axis of the recliner when the seat back is in an upright use position.

16. The vehicle seat of claim 1 wherein the actuating member is pivotally connected directly to the back side bracket with a pivot shaft at a location below a rotational axis of the recliner when the seatback is in an upright use position.

17. The vehicle seat of claim 16 wherein the fold and tumble mechanism further includes a stop fixedly attached to the back side bracket and configured to inhibit pivotal movement of the actuating member, and a spring having a first end connected directly to the back side bracket and a second end connected to the actuating member, wherein the spring is configured to urge the actuating member toward the stop.

18. The vehicle seat of claim 17 wherein the stop is located below the rotational axis of the recliner when the seat back is in the upright use position.

19. The vehicle seat of claim 18 wherein the actuating member has an elongated, generally linear shape, such that first and second ends of the actuating member are aligned along an axis that extends through a pivot point of the actuating member.

20. The vehicle seat of claim 1 wherein the actuating member is a one-piece member that is pivotally connected directly to the back side bracket with a pivot shaft at a location below a rotational axis of the recliner when the seatback is in an upright use position.

Assignees

• Lear Corp

Inventors

• Mahadik Mangesh
• Mahajan Nilesh
• Kumar Rajiv
• Surwase Sharad
• Ferrari Michael

Classifications

• B60N2/3011

  the back-rest being hinged on the cushion, e.g. "portefeuille movement" · CPC title

• B60N2/30

  Non-dismountable {or dismountable} seats storable in a non-use position, e.g. foldable spare seats · CPC title

• B60N2/305 Primary

  the cushion being hinged on the vehicle frame · CPC title

• B60N2/10

  tiltable (B60N2/12 {, B60N2/2875} take precedence) · CPC title

• B60N2/20

  the back-rest being tiltable, e.g. to permit easy access (B60N2/04, B60N2/22 {, B60N2/3002} take precedence) · CPC title